SoftwareKeyboaryArea.cs

using UnityEngine;

namespace Cham
{
    /// <summary>
    /// ソフトウェアキーボードの表示領域を管理するクラス
    /// </summary>
    public static class SoftwareKeyboaryArea
    {
        /// <summary>
        /// 高さを返します
        /// </summary>
        public static int Height
        {
            get
            {
#if !UNITY_EDITOR && UNITY_ANDROID

                using ( var unityPlayer = new AndroidJavaClass( "com.unity3d.player.UnityPlayer" ) )
                {
                    var view = unityPlayer
                        .GetStatic<AndroidJavaObject>( "currentActivity" )
                        .Get<AndroidJavaObject>( "mUnityPlayer" )
                        .Call<AndroidJavaObject>( "getView" )
                    ;

                    using ( var rect = new AndroidJavaObject( "android.graphics.Rect" ) )
                    {
                        view.Call( "getWindowVisibleDisplayFrame", rect );

                        return Screen.height - rect.Call<int>( "height" );
                    }
                }
#else
                return ( int )TouchScreenKeyboard.area.height;
#endif
            }
        }
    }
}